CN114081487B - Paediatrics nursing device that draws blood - Google Patents

Abstract

The invention discloses a paediatric blood drawing and nursing device, the technical solution of which is as follows: comprising a fixing seat, and further comprising: a first support plate installed and fixed on the top of the fixing seat; a first connecting plate fixed on the fixing seat A rod, a second connecting rod is rotatably connected to the first connecting rod, and a second supporting plate is fixed at the end of the second connecting rod; a blood vessel display lamp is arranged on the side wall of the second supporting plate; An arm fixing assembly for fixing the patient's arm in the first support plate; a linkage structure for driving the lifting action of the arm fixing assembly and for driving the second support plate to rotate in an angle; provided in the A protective component for protection on one side of the fixed seat; a pacification component connected on the top of the first support plate for pacifying the child; the pediatric blood drawing nursing device can assist in fixing the patient's arm and maintaining the position of the arm , and can soothe children and reduce their inner fears.

Description

A kind of pediatric blood drawing nursing device

technical field

The present invention relates to the field of pediatrics, and more particularly, to a pediatric blood drawing nursing device.

Background technique

Pediatrics is a comprehensive medical science that comprehensively studies the physical and mental development, health care and disease prevention and treatment of children. All health and hygiene problems related to children and adolescents belong to the scope of pediatrics. The objects to be treated are in the growth and development period. , In addition to the special requirements of the venous blood test, it is generally required to draw blood in the morning, try to reduce the amount of exercise before the blood draw, do not eat food, keep an empty stomach, and drink a small amount of water, except for some experimental results that must be taken on time. The interference is that children are lively and easy to use, and their age is small, which increases the difficulty of blood drawing, and requires a nursing device to assist blood drawing.

The existing Chinese patent with publication number CN112401885A discloses a paediatric blood drawing nursing device, comprising a fixing plate, an airbag ring is installed at the inner middle position of the fixing plate, and a bottom plate is installed on the bottom surface of the fixing plate, so the A telescopic mechanism and a support rod are installed symmetrically at the four corners of the bottom surface of the bottom plate, respectively, the bottom surface of the telescopic mechanism and the support rod are equipped with universal wheels, and the rear end of the upper surface of the telescopic mechanism is provided with a fixing groove, A test tube rack is installed in the fixing groove; a cartoon turntable is installed on the upper surface of the bottom plate and on the side away from the fixing plate, the front surface of the cartoon turntable is rotatably connected with an indicator rod, and the front surface of the cartoon turntable is rotatably connected. A speaker is installed at the bottom.

The above-mentioned pediatric blood drawing nursing device has some disadvantages, such as: it cannot assist in the fixation of the patient's arm and the maintenance of the position of the arm, and it is difficult to soothe the patient and reduce the patient's inner fear.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a pediatric blood drawing nursing device to solve the problems raised by the background art.

For achieving the above object, the present invention provides the following technical solutions:

A paediatric blood drawing nursing device, comprising a fixing seat, further comprising:

Install and fix the first support plate on the top of the fixed seat;

a first connecting rod fixed on the fixed seat, a second connecting rod is rotatably connected to the first connecting rod, and a second supporting plate is fixed at the end of the second connecting rod;

a blood vessel visualization lamp arranged on the side wall of the second pallet;

an arm fixing assembly arranged in the first support plate for fixing the patient's arm;

a linkage structure for driving the lifting action of the arm fixing assembly and for driving the second supporting plate to rotate;

a protection component for protection provided on one side of the fixed seat;

A soothing component connected on the top of the first support plate for soothing children;

a shielding assembly arranged above the first support plate;

and a thermal insulation component disposed in the second support plate for keeping the arm of the patient warm.

By adopting the above technical solution, the pediatric blood drawing nursing device can assist in the fixation of the child's arm and the maintenance of the arm position, and can soothe the child and reduce the child's inner fear; when the device is used, the child's arm can be placed on the child's arm. Above the first support plate and the second support plate, the linkage structure can be used to drive the lifting action of the arm fixing component and drive the angle adjustment rotation of the second support plate, so that the second support plate can be fixed under the condition of fixing the patient's arm. Adjust to a suitable position, use the comforting component to help comfort the child, and use the thermal insulation component to warm the child's arm, increase body temperature, and reduce the feeling of fear.

Further, the arm fixing assembly includes a rubber backing plate, a pressure plate, an arc-shaped notch, a top plate, a protruding column, a limit block and a spring, and the rubber backing plate is fixed in the opening of the first support plate, so The top plate is slidably connected in the opening of the first support plate, the pressing plate is connected to the lower part of the top plate, the arc-shaped notch is opened on the side of the pressing plate close to the rubber backing plate, the The protruding column is fixed above the pressure plate, the limit block is fixed on the end of the protruding column, the spring is sleeved on the outside of the protruding column, and one end of the spring is fixed on the top plate , the other end of the spring is fixed with the pressing plate.

By adopting the above technical solution, when the top plate is driven up and down, it can drive the pressure plate downward, so that the arm is pressed at the arc-shaped notch, and the use of the protruding column, the limit block and the spring can realize shock absorption and buffering, and prevent the patient from being injured. Injury to the arm.

Further, the linkage structure includes a servo motor, a first fixed rod, a first gear, a second fixed rod, an electromagnetic clutch, a third fixed rod, a second gear, a fourth fixed rod, a turbine part, a worm part, and a screw part , sliding sleeve, outrigger plate and two guide columns, the servo motor is fixed on the fixed seat, the first fixed rod is fixed on the end of the motor shaft of the servo motor, and the first gear is fixed on the The end of the first fixing rod and one end of the first fixing rod are fixed with the rotating shaft of the second connecting rod, and the second fixing rod and the fourth fixing rod are respectively rotatably connected to the fixing seat The third fixed rod is connected and fixed with the second fixed rod through the electromagnetic clutch, the second gear is fixed on the end of the third fixed rod, the first gear and the second gear The worm part is fixed on the outside of the second fixed rod, the worm part is fixed on the outside of the fourth fixed rod, the worm part and the worm part are meshed with each other, and the screw part is fixed On the top of the fourth fixing rod, the sliding sleeve is threadedly connected to the outside of the screw portion, the overhanging plate is fixed on the sliding sleeve, and the two guide columns are fixed on the overhanging plate , the guide column is slidably connected with the first support plate, and the other end of the guide column is connected and fixed with the top plate.

By adopting the above technical solution, when the servo motor is started, it can drive the first fixing rod to rotate and drive the second supporting plate to swing position. The first gear drives the second gear to rotate, drives the second fixed rod and the third fixed rod to rotate, drives the turbine part to rotate, drives the worm part on the fourth fixed rod to rotate, drives the screw part to rotate, and drives the sliding sleeve to slide outside the screw part , Under the guidance of the guide column on the outrigger plate, the pressure plate can be driven down to realize the arm fixation; when the electromagnetic clutch is in the disconnected state, it can ensure that the first fixed rod is in the rotating state, that is, when the second support plate can adjust the angle, The arm is fixed without driving the arm fixing component, which improves the flexibility of use.

Further, the protection assembly includes a slot, an insert, a pressing bolt, a first baffle, a second baffle and an inclined baffle, the slot is opened in the fixing seat, and the insert is inserted In the slot, the insert strip is connected and fixed with the first baffle plate, the second baffle plate is fixed on the first baffle plate, and the pressing bolt is threadedly connected to the first baffle plate Inside the plate, the inclined baffle is fixed on the end side of the second baffle.

By adopting the above technical solutions, the safety of the device can be improved by using the first baffle, the second baffle and the inclined baffle, the clamping installation of the first baffle can be realized by using the slot and the insert, and the clamping bolt can be used to realize the installation of the first baffle. Fixing of the first baffle.

Further, the appeasement assembly includes an indented bracket, a threaded post, a fastening ring, several clip bars and a multimedia player, the indented bracket is rotatably connected to the outside of the first support plate, and the threaded post is fixed. On the first pallet, the threaded column is inserted into the indented bracket, the fastening ring is threadedly connected to the outside of the threaded column, and a plurality of the clamping bars are fixed on the indented bracket Above the bracket, the multimedia player is clamped between a plurality of the clip bars.

By adopting the above technical solution, when the operator rotates the indented bracket, the multimedia player fixed on the clip can be fixed, and the position of the indented bracket can be locked by tightening the fastening ring outside the threaded column.

Further, the shielding assembly includes a first shielding plate, a sliding groove, a second shielding plate, a locking bolt and an inclined shielding plate, the first shielding plate is fixed above the first supporting plate, and the sliding groove The inner opening is in the first shielding plate, the second shielding plate is slidably connected in the sliding groove, the locking bolt is threadedly connected in the second shielding plate, and the inclined shielding plate is fixed in the sliding groove. the end side of the second shielding plate.

By adopting the above technical solution, the shielding range can be adjusted by pulling the second shielding plate in the sliding groove in the first shielding plate, and the second supporting plate can be protected against reflection by tilting the shielding plate.

Further, the thermal insulation assembly includes an air pump, a first air pipe, a second air pipe, a PTC heater and a controller, the air pump is fixed on the outside of the second support plate, and the first air pipe is fixed on the outside of the air pump. the end of the air outlet, the second air pipe is fixed at the end of the first air pipe, the second air pipe is located in the opening of the second support plate, the PTC heater is arranged in the second air pipe, The controller and the PTC heater are electrically connected.

By adopting the above technical solution, when the air pump is started, it can blow air through the first trachea and the second trachea, the PTC heater can heat the blown air, fix the limbs in the second pallet, and the controller can Control the heating temperature.

Further, a bearing seat is fixed on the fixing seat, and the first fixing rod, the second fixing rod, the third fixing rod and the fourth fixing rod are respectively rotatably connected in the bearing seat.

By adopting the above technical solution, the bearing seat can improve the rotational stability and flexibility of the first fixed rod, the second fixed rod, the third fixed rod and the fourth fixed rod.

Further, two sides of the second support plate and the first support plate respectively have uprights integrally formed therewith, and the surfaces of the first support plate and the second support plate are coated with a layer of iron fluoride. Dragon coating.

By adopting the above technical solution, the vertical blocking parts can be used to shield and protect both sides of the patient's arm, and the Teflon coating can improve the antifouling performance.

Further, a first mounting plate and a second mounting plate are fixed on the fixing base, the first mounting plate is provided with a threaded hole, and the second mounting plate is provided with a waist-shaped groove.

By adopting the above technical solution, the first mounting plate and the second mounting plate can be used to assist the mounting and fixing of the fixing base.

To sum up, the present invention mainly has the following beneficial effects:

This pediatric blood drawing nursing device can assist in the fixation of the patient's arm and the maintenance of the position of the arm, and can soothe the patient and reduce the patient's inner fear; when the device is used, the patient's arm can be placed on the first pallet and Above the second support plate, the linkage structure can be used to drive the lifting action of the arm fixing component and drive the second support plate to adjust the angle to rotate, so that the second support plate can be adjusted to a suitable position under the condition of fixing the patient's arm. The use of the comfort component can assist in comforting the child, and the use of the heat preservation component can heat the child's arm, increase the body temperature, and reduce the feeling of fear.

Description of drawings

1 is one of the schematic structural diagrams of an embodiment provided by the present invention;

Fig. 2 is the second structural schematic diagram of an embodiment provided by the present invention;

3 is a third schematic structural diagram of an embodiment provided by the present invention;

4 is one of the structural cross-sectional views of an embodiment provided by the present invention;

Fig. 5 is the second structural cross-sectional view of an embodiment provided by the present invention;

6 is a fourth schematic structural diagram of an embodiment provided by the present invention;

FIG. 7 is an enlarged schematic view of the structure of part B in FIG. 6 .

In the figure: 1, the fixed seat; 11, the first support plate; 12, the first connecting rod; 13, the second connecting rod; 14, the second support plate; 15, the blood vessel display lamp; 2, the arm fixing assembly; 3, Linkage structure; 4. Protection component; 5. Comfort component; 6. Blocking component; 7. Thermal insulation component; 21. Rubber backing plate; 22. Pressure plate; 23. Arc-shaped notch; 24. Top plate; 26, limit block; 27, spring; 31, servo motor; 311, the first fixed rod; 312, the first gear; 32, the second fixed rod; 321, electromagnetic clutch; 322, the third fixed rod; 323, the first Two gears; 33, the fourth fixed rod; 331, turbine part; 332, worm part; 333, screw part; 334, sliding sleeve; 34, outrigger plate; 35, guide column; 41, slot; 42, insert ; 43, compression bolt; 44, the first baffle; 45, the second baffle; 46, inclined baffle; 51, indentation bracket; 52, threaded column; 53, fastening ring; 54, clip; 55 , multimedia player; 61, the first shielding plate; 62, the sliding groove; 63, the second shielding plate; 64, the locking bolt; 65, the inclined shielding plate; 71, the air pump; 72, the first air pipe; 73, the second Air pipe; 16, bearing seat; 17, first mounting plate; 18, second mounting plate; 171, threaded hole; 181, waist groove.

Detailed ways

Example:

The present invention will be further described in detail below in conjunction with accompanying drawings 1-7.

Example 1

Referring to FIGS. 1 , 4 and 5 , the present embodiment provides a paediatric blood drawing care device, including a fixing base 1 , and also includes the following components: a first support plate 11 installed and fixed on the top of the fixing base 1 ; The first connecting rod 12 on the 1, the second connecting rod 13 is rotatably connected to the first connecting rod 12, and the end of the second connecting rod 13 is fixed with a second supporting plate 14; set on the side wall of the second supporting plate 14 The blood vessel display lamp 15 is provided; the arm fixing assembly 2 for fixing the patient's arm is arranged in the first support plate 11; the linkage structure for driving the lifting action of the arm fixing assembly 2 and for driving the second support plate 14 to adjust the angle and rotate 3; a protective assembly 4 for protection provided on one side of the fixed seat 1; a soothing assembly 5 for soothing children connected on the top of the first support plate 11; a shielding assembly 6 disposed above the first support plate 11; And the heat preservation component 7 disposed in the second support plate 14 for keeping the arm of the patient warm.

Referring to Figure 1, Figure 4 and Figure 5, the pediatric blood drawing nursing device can assist in the fixation of the child's arm and the maintenance of the arm position, and can soothe the child and reduce the child's inner fear; The arm can be placed on the top of the first support plate 11 and the second support plate 14, and the linkage structure 3 can be used to drive the lifting action of the arm fixing assembly 2 and drive the second support plate 14 to adjust the angle and rotate, thereby realizing Adjust the second support plate 14 to an appropriate position under the fixed condition, use the comfort component 5 to assist in comforting the patient, and use the heat preservation component 7 to warm the patient's arm, increase body temperature, and reduce the feeling of fear.

2 and 4, the arm fixing assembly 2 includes a rubber pad 21, a pressure plate 22, an arc-shaped notch 23, a top plate 24, a protruding column 25, a limit block 26 and a spring 27. The rubber pad 21 is fixed on the first In the opening of a supporting plate 11, the top plate 24 is slidably connected in the opening of the first supporting plate 11, the pressing plate 22 is connected to the lower part of the top plate 24, and the arc-shaped notch 23 is opened on the side of the pressing plate 22 close to the rubber backing plate 21, The protruding column 25 is fixed above the pressure plate 22, the limit block 26 is fixed on the end of the protruding column 25, the spring 27 is sleeved on the outside of the protruding column 25, one end of the spring 27 is fixed on the top plate 24, and the other end of the spring 27 is fixed on the top plate 24. It is fixed with the pressure plate 22; when the top plate 24 is driven up and down, it can drive the pressure plate 22 downward, so that the arm is pressed at the arc-shaped recess 23, and the protruding column 25, the limit block 26 and the spring 27 can be used to achieve shock absorption and Cushioning to prevent injury to the patient's arm.

Referring to FIGS. 5 , 6 and 7 , in order to realize the control linkage, the provided linkage structure 3 includes a servo motor 31 , a first fixed rod 311 , a first gear 312 , a second fixed rod 32 , an electromagnetic clutch 321 , and a third fixed rod 322, the second gear 323, the fourth fixed rod 33, the turbine part 331, the worm part 332, the screw part 333, the sliding sleeve 334, the outrigger plate 34 and the two guide columns 35, the servo motor 31 is fixed on the fixed seat 1, The first fixing rod 311 is fixed on the end of the motor shaft of the servo motor 31, the first gear 312 is fixed on the end of the first fixing rod 311, one end of the first fixing rod 311 is fixed with the rotating shaft of the second link 13, the second The fixed rod 32 and the fourth fixed rod 33 are rotatably connected to the fixed seat 1 respectively, the third fixed rod 322 is connected and fixed with the second fixed rod 32 through the electromagnetic clutch 321, and the second gear 323 is fixed on the end of the third fixed rod 322. The first gear 312 and the second gear 323 mesh with each other, the turbine part 331 is fixed outside the second fixing rod 32, the worm part 332 is fixed outside the fourth fixing rod 33, the worm part 332 meshes with the turbine part 331, and the screw part 333 is fixed on the top of the fourth fixing rod 33, the sliding sleeve 334 is threadedly connected to the outside of the screw portion 333, the overhanging plate 34 is fixed on the sliding sleeve 334, the two guide columns 35 are fixed on the overhanging plate 34, and the guiding columns 35 are connected with the first A support plate 11 is slidably connected, and the other end of the guide column 35 is connected and fixed to the top plate 24; when the servo motor 31 is activated, it can drive the first fixing rod 311 to rotate, and drive the second support plate 14 to swing. 321 When the second fixed rod 32 and the third fixed rod 322 are in a linked state, it can drive the second gear 323 to rotate through the first gear 312, drive the second fixed rod 32 and the third fixed rod 322 to rotate, and drive the turbine part 331 Rotation, drives the worm part 332 on the fourth fixed rod 33 to rotate, drives the screw part 333 to rotate, drives the sliding sleeve 334 to slide outside the screw part 333, and under the guidance of the guide post 35 on the overhang plate 34, can drive the pressing plate 22 to descend, Realize arm fixation; when the electromagnetic clutch 321 is in a disconnected state, it can ensure that the first fixing rod 311 is in a rotating state, that is, when the angle of the second support plate 14 can be adjusted, the arm fixing assembly 2 is not driven to fix the arm, improving the use of flexibility.

2 and 3, in order to improve the safety of the device, the provided protective assembly 4 includes a slot 41, an insert 42, a pressing bolt 43, a first baffle 44, a second baffle 45 and an inclined baffle 46, The slot 41 is opened in the fixing seat 1, the insert 42 is inserted into the slot 41, the insert 42 is connected and fixed with the first baffle 44, the second baffle 45 is fixed on the first baffle 44, and the bolts are pressed. 43 is screwed into the first baffle 44, and the inclined baffle 46 is fixed on the end side of the second baffle 45. The use of the first baffle 44, the second baffle 45 and the inclined baffle 46 can improve the safety of the device. The slot 41 and the insert strip 42 can realize the snap-fit installation of the first baffle plate 44 , and the first baffle plate 44 can be fixed by using the pressing bolts 43 .

Referring to Fig. 1 and Fig. 2, in order to soothe the emotions when the child is crying, the soothing assembly 5 that is provided includes a tumbler-shaped bracket 51, a threaded post 52, a fastening ring 53, several clamping bars 54 and a multimedia player 55. The threaded bracket 51 is rotatably connected to the outside of the first support plate 11, the threaded column 52 is fixed on the first support plate 11, the threaded column 52 is inserted into the indented bracket 51, and the fastening ring 53 is threadedly connected to the outside of the threaded column 52. , several clip bars 54 are fixed on the top of the indented bracket 51, and the multimedia player 55 is clamped between several clip bars 54; when the operator rotates the indented bracket 51, the multimedia player fixed on the clip bar 54 can be 55 is fixed, and the position of the indented bracket 51 can be locked by tightening the fastening ring 53 outside the threaded post 52 .

Referring to Fig. 1, Fig. 2 and 4, in order to realize the partial shielding of the arm of the child and prevent the psychological fear caused by visual inspection, the shielding assembly 6 provided comprises a first shielding plate 61, a sliding groove 62, a second shielding The plate 63, the locking bolt 64 and the inclined shielding plate 65, the first shielding plate 61 is fixed above the first supporting plate 11, the sliding groove 62 is opened in the first shielding plate 61, and the second shielding plate 63 is slidably connected to the In the sliding groove 62, the locking bolt 64 is screwed into the second shielding plate 63, and the inclined shielding plate 65 is fixed on the end side of the second shielding plate 63. By pulling the second shielding plate in the sliding groove 62 in the first shielding plate 61 The plate 63 can adjust the shielding range, and the inclined shielding plate 65 can perform anti-reflection protection for the second supporting plate 14 .

6 and 7, the heat preservation assembly 7 includes an air pump 71, a first air pipe 72, a second air pipe 73, a PTC heater and a controller, the air pump 71 is fixed on the outside of the second support plate 14, and the first air pipe 72 is fixed on the The end of the air outlet of the air pump 71, the second air pipe 73 is fixed at the end of the first air pipe 72, the second air pipe 73 is located in the opening of the second support plate 14, the PTC heater is arranged in the second air pipe 73, the controller and the PTC The heaters are electrically connected, and when the air pump 71 is activated, it can blow air through the first air pipe 72 and the second air pipe 73, and the PTC heater can heat the blowing air, and the limbs in the second support plate 14 can be heated. Fixed, the controller can control the heating temperature.

Referring to FIGS. 1 and 2 , in order to improve the rotation flexibility of the first fixed rod 311 , the second fixed rod 32 , the third fixed rod 322 and the fourth fixed rod 33 , the bearing seat 16 is fixed on the fixed seat 1 , the first The fixed rod 311 , the second fixed rod 32 , the third fixed rod 322 and the fourth fixed rod 33 are respectively rotatably connected in the bearing seat 16 , and the first fixed rod 311 , the second fixed rod 32 , the third fixed rod 32 and the third fixed rod The stability and flexibility of rotation of the fixed rod 322 and the fourth fixed rod 33 .

Referring to FIGS. 1 and 2 , two sides of the second supporting plate 14 and the first supporting plate 11 are respectively provided with uprights integrally formed therewith, and the surfaces of the first supporting plate 11 and the second supporting plate 14 are coated with a layer of Teflon coating, the use of standing parts can shield and protect both sides of the patient's arms, and Teflon coating can improve the anti-fouling performance.

1 and 2, in order to facilitate the fixing of the fixing base 1, a first mounting plate 17 and a second mounting plate 18 are fixed on the fixing base 1. The first mounting plate 17 is provided with a threaded hole 171, and the second mounting plate A waist-shaped groove 181 is opened in the 18 , and the first mounting plate 17 and the second mounting plate 18 can be used to assist the mounting and fixing of the fixing base 1 .

This specific embodiment is only an explanation of the present invention, and it does not limit the present invention. Those skilled in the art can make modifications without creative contribution to the present embodiment as needed after reading this specification, but as long as the rights of the present invention are used All claims are protected by patent law.

Claims (9)

1. A paediatric blood drawing nursing device, comprising a fixing seat (1), characterized in that, further comprising: Install and fix the first support plate (11) on the top of the fixing seat (1); A first connecting rod (12) fixed on the fixing seat (1), a second connecting rod (13) is rotatably connected to the first connecting rod (12), and a second connecting rod (13) is rotatably connected to the first connecting rod (12). A second support plate (14) is fixed at the end; a blood vessel visualization lamp (15) arranged on the side wall of the second support plate (14); an arm fixing assembly (2) for fixing the patient's arm, arranged in the first support plate (11); A linkage structure (3) for driving the lifting action of the arm fixing assembly (2) and for driving the second support plate (14) to adjust the angle of rotation; a protection component (4) for protection provided on one side of the fixed seat (1); A soothing component (5) for soothing a child connected to the top of the first support plate (11); a shielding assembly (6) arranged above the first support plate (11); and a thermal insulation component (7) arranged in the second support plate (14) for keeping the arm of the patient warm; The arm fixing assembly (2) includes a rubber backing plate (21), a pressure plate (22), an arc-shaped notch (23), a top plate (24), a protruding column (25), a limit block (26) and a spring ( 27), the rubber backing plate (21) is fixed in the opening of the first supporting plate (11), and the top plate (24) is slidably connected in the opening of the first supporting plate (11), so The pressing plate (22) is connected to the lower part of the top plate (24), the arc-shaped recess (23) is opened on the side of the pressing plate (22) close to the rubber backing plate (21), and the protruding The column (25) is fixed above the pressing plate (22), the limiting block (26) is fixed on the end of the protruding column (25), and the spring (27) is sleeved on the protruding column (25). 25), one end of the spring (27) is fixed on the top plate (24), and the other end of the spring (27) is fixed on the pressing plate (22). 2 . The pediatric blood drawing nursing device according to claim 1 , wherein the linkage structure ( 3 ) comprises a servo motor ( 31 ), a first fixing rod ( 311 ), a first gear ( 312 ), The second fixed rod (32), the electromagnetic clutch (321), the third fixed rod (322), the second gear (323), the fourth fixed rod (33), the turbine part (331), the worm part (332), the screw (333), sliding sleeve (334), outrigger plate (34) and two guide columns (35), the servo motor (31) is fixed on the fixing seat (1), the first fixing rod (311) is fixed on the end of the motor shaft of the servo motor (31), the first gear (312) is fixed on the end of the first fixing rod (311), and the first gear (311) is One end is fixed to the rotating shaft of the second connecting rod (13), the second fixing rod (32) and the fourth fixing rod (33) are rotatably connected to the fixing seat (1), respectively. The third fixing rod (322) is connected and fixed with the second fixing rod (32) through the electromagnetic clutch (321), the second gear (323) is fixed on the end of the third fixing rod (322), The first gear (312) and the second gear (323) are in mesh with each other, the turbine part (331) is fixed outside the second fixing rod (32), and the worm part (332) is fixed Outside the fourth fixing rod (33), the worm part (332) and the turbine part (331) are engaged with each other, and the screw part (333) is fixed on the top of the fourth fixing rod (33), The sliding sleeve (334) is screwed on the outside of the screw portion (333), the overhanging plate (34) is fixed on the sliding sleeve (334), and the two guide posts (35) are fixed on the On the overhanging plate (34), the guide column (35) is slidably connected with the first support plate (11), and the other end of the guide column (35) is connected with the top plate (24) fixed. 3. A pediatric blood drawing nursing device according to claim 1, characterized in that: the protective component (4) comprises a slot (41), an insert (42), a pressing bolt (43), a first The baffle (44), the second baffle (45) and the inclined baffle (46), the slot (41) is opened in the fixing seat (1), and the insert strip (42) is inserted into the In the slot (41), the insert strip (42) is connected and fixed with the first baffle plate (44), and the second baffle plate (45) is fixed on the first baffle plate (44), The pressing bolt (43) is screwed into the first baffle plate (44), and the inclined baffle plate (46) is fixed on the end side of the second baffle plate (45). 4. A pediatric blood drawing nursing device according to claim 1, characterized in that: the soothing component (5) comprises an indented bracket (51), a threaded post (52), a fastening ring (53), a plurality of a clamping strip (54) and a multimedia player (55), the indented bracket (51) is rotatably connected to the outside of the first support plate (11), and the threaded post (52) is fixed on the first support plate (11). On the support plate (11), the threaded column (52) is inserted into the indented bracket (51), the fastening ring (53) is threadedly connected to the outside of the threaded column (52), and several The clip bars (54) are fixed above the indented brackets (51), and the multimedia player (55) is clamped between a plurality of the clip bars (54). 5. A pediatric blood drawing nursing device according to claim 1, wherein the shielding component (6) comprises a first shielding plate (61), a sliding groove (62), and a second shielding plate (63) , locking bolts (64) and an inclined shielding plate (65), the first shielding plate (61) is fixed above the first supporting plate (11), and the sliding groove (62) is opened in the Inside the first shielding plate (61), the second shielding plate (63) is slidably connected in the sliding groove (62), and the locking bolt (64) is threadedly connected to the second shielding plate (63) ), the inclined shielding plate (65) is fixed on the end side of the second shielding plate (63). 6 . The pediatric blood drawing nursing device according to claim 1 , wherein the heat preservation assembly ( 7 ) comprises an air pump ( 71 ), a first air tube ( 72 ), a second air tube ( 73 ), and a PTC heating system. 7 . The air pump (71) is fixed on the outside of the second support plate (14), the first air pipe (72) is fixed on the air outlet end of the air pump (71), the first air pipe (72) is Two gas pipes (73) are fixed on the end of the first gas pipe (72), the second gas pipe (73) is located in the opening of the second support plate (14), and the PTC heater is arranged on the first gas pipe (72). In the second gas pipe (73), the controller and the PTC heater are electrically connected. 7 . The pediatric blood drawing nursing device according to claim 2 , wherein a bearing seat ( 16 ) is fixed on the fixing seat ( 1 ), the first fixing rod ( 311 ), the first fixing rod ( 311 ), the first fixing rod ( 311 ). The two fixing rods (32), the third fixing rod (322) and the fourth fixing rod (33) are respectively rotatably connected in the bearing seat (16). 8. A pediatric blood drawing and nursing device according to claim 1, characterized in that: both sides of the second support plate (14) and the first support plate (11) respectively have vertical structures integrally formed therewith. For the blocking part, the surfaces of the first support plate (11) and the second support plate (14) are coated with a layer of Teflon coating. 9 . The pediatric blood drawing nursing device according to claim 1 , wherein a first mounting plate ( 17 ) and a second mounting plate ( 18 ) are fixed on the fixing seat ( 1 ), and the first mounting plate ( 18 ) A threaded hole (171) is formed in an installation plate (17), and a waist-shaped groove (181) is formed in the second installation plate (18).

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